Check-controlled lock.



E. BVMcNEER CHECK CONTROLLED LOCK.

APPLICATION FILED FEB-l2,1916.

Patented June 13, 1916 5114 mambo;

E E1 M NEER EMERALD B. MQ'NEER, 0F GLEN WIL ON, VIRGINIA.

CHECK-CONTROLLED LOCK.

Specification of Letters Patent.

Patented J une 13, 1916.

.pplication filed February 12, 1916. Serial No. 77,986.

To all whom it may concern:

Be i known that I, EMERALD B. MoNnnn, a citizen of the United States, residing at Glen W'ilton, in the county of Botetourt and State of Virginia, have invented certain new and useful Improvementsin Check- Controlled Locks, of which the following is a specification, reference being had to the accompanying drawings. v

This invention relates to certain improvements in check controlled locks, and it is an object of the invention to provide a device of this general character having novel and improved means whereby the latch is prevented from being adjusted into open or inoperative position until a check has been hereinafter be definitely claimed.

interposed between the latch and operating member.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved lock whereby certain important ad vantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use,

all as will be hereinafter more fully set forth. g

The novel features of the invention will In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein- Figure 1 is a View partly in elevation and partly in vertical section illustrating an embodiment of my invention; and Fig. 2 is a fragmentary vertical sectional view taken transversely of the device as disclosed in Fig. 1.

As disclosed in the accompanying drawings, D denotes a portion of a door and J denotes a portion of a door iamb, and 1 denotes a casting of predetermineddimensions adapted to be operatively connected with the door D and overlying the. outstanding member 2 carried by the jamb J when the door I). is in closed position.

The upper face of the memberQ is pro vided with a recess 3 in which ispositioned the ,latch 4 normally maintained projected through the medium of the expansible member 5 positioned within the recess 3 and interposed between the bore of the recess 3 and the inner end of the latch 4, The projected portion of the latch 4 extends within the lower portion of the opening 6 formed in the member 1 and extending therethrough, said opening 8 being in alinement with the recess 3.

Mounted within the opening 6 is the operating member or plunger 7 provided at its outer end with the head 8 from which de. pend the arms or rods 9 preferably diametrically opposed and arranged substantially in parallelism with the operating member or plunger 7. The free extremities of the rods or arms 9 extend within the recesses 10 formed in the body 1 at opposite sides of the opening 6 and with which coactthe expansible members 11 interposed between the inner ends of the recesses 10 and the inner ends of the rods or arms 9, whereby it will be perceived that the operating member or plunger 7 is normally maintained in an adjustment or position away from the endof the bore 6 adapted to register with the recess 3. It is also to be noted that the plunger 7 or operating member is of such a length as to be freeof contact with the outer end of the latch 4 when the plunger or operating member 7 is at the limit of its inward movement.

The member 1 has disposed thereth rough the inclined slot 12 affording a chute for a check of any predetermined character and said slot or chute 112 communicates with the bore or opening 6 at a point below the plun ger or operating member 7 when said memher is at the limit of its outward movement. When a check is inserted within the slot or chute 12 it will be perceived that the same will be interposed between the outer end of the latch 4 and the inner end of the plunger or operating member 7, whereby inward movement of the plunger or operating member 7 will force the latch v4: inwardly mounted for swinging or pivoted movement. i

From the foregoing description it is thought to be obvious that a lock oonstructed in accordance with my invention 13 of an extremely simple and comparativeliy inexpensive nature and is particular y well adapted for use by reason of the convenience and facility with which it may be assembled, and it will also be obvious that my invention is susceptible of some change and modification without material departure from the princi les and spirit thereof and for this reason i do not wish to be understood as limiting myself to the precise arrange'ment and formation of .the several parts herein shown in carrying out my invention in practice.

I claim:

1. In combination with a stationary member and a swinging member, a member carried by the stationary member and extend ing therefrom, a body carried by the swing ing member and adapted to overlie the extended member of the stationary member, a latch carried by. the extended member, said body being provided with an opening therethrough into which the latch is extended when the opening of the body is in register with the latch of the extended member, means for normally maintaining the latch extended, a plunger mounted for reciprocatory movement within the opening of the lbody, means for normally maintaining the plunger in a osition away from the end of the opening mto which the latch is received, and a chute in communication with the opening of the body at a point below the inner end of the plunger when the plunger is in its norm'al position. I

2. In combination with a stationary member and a swinging member, a member carried by the stationary member and extending therefrom, a body carried by the swinging member and adapted to overlie the extended member of the stationary member, a latch carried by the extended member, said body being provided with an opening therethrough into which the latch is extended when the opening of the body is in register with the latch of the extended member, means for normally maintaining the latch extended, a plunger mounted for reciprocatory movemeutwithin the opening of the body, means for normally maintaining the plunger in a position away from the end of the opening into which the latch is received, a chute in communication with the opening of the body at a point below the inner end of the plunger when the plunger is in its normal position, the means for maintaining the plunger in its normal position comprising arms carried by the outer end of the plunger and extending toward the adjacent face of the body, said body being provided with recesses into which sald arms extend,-and expansible members positioned within the recesses inwardly of the arms.

In testimony Wli'ereof'I hereunto afiix my signature in the presence of two witnesses.

. MER'AELD B. McNEER.

Witnesses H. A. DUDLEY, Tnos. J WILSON, Jr. 

